.mk-chat-box{
    font-family: "Helvetica Neue", Helvetica, Microsoft Yahei, Hiragino Sans GB, WenQuanYi Micro Hei, sans-serif;
    font-size:16px;
    width: 100%;
    padding: 0;
    position:relative;
    overflow-y: scroll;
    overflow-x: hidden;
}

.mk-chat-box .msg{ /*消息主体*/
    margin: 4px 6px;
    position: relative; /*兼容IE*/
    min-height: 40px;
    border: 0;
}
.mk-chat-box .right{
    text-align: right;
    margin-left: 64px;
}
.mk-chat-box .left{
    text-align: left;
    margin-right: 64px;
}

.mk-chat-box img.head{ /*头像*/
    width: 32px;
    height: 32px;
    top: 8px;
    position: absolute;
    -moz-border-radius: 100%; /* Firefox */
    -webkit-border-radius: 100%; /* Safari 和 Chrome */
    border-radius: 100%;
    border: 1px solid #cbe5c8;
    -moz-user-select: none; /*禁止用户选中*/
    -o-user-select: none;
    -khtml-user-select: none;
    -webkit-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.mk-chat-box .right img.head{
    right: 0;
}
.mk-chat-box .left img.head{
    left: 0;
}

.mk-chat-box .name{    /*昵称显示区域*/
    color: #8b8b8b;
    font-size: 12px;
    display: block;
    line-height: 18px;
}
.mk-chat-box .right .name{
    margin: 0 48px 2px 0;
}
.mk-chat-box .left .name{
    margin: 0 0 2px 48px;
}

.mk-chat-box .content{  /*消息内容区域*/
    word-break: break-all;
    word-wrap: break-word;/*支持IE，chrome，FF*/
    text-align: left;
    position: relative;
    display: inline-block;
    font-size: 14px;
    padding: 6px;
    line-height: 18px;
    -moz-border-radius: 6px; /* Firefox */
    -webkit-border-radius: 6px; /* Safari 和 Chrome */
    border-radius: 6px;
    min-width: 9px;     /*防止出现空白消息变形*/
    min-height: 18px;
}
.mk-chat-box .content img{  /*消息内容区域图片*/
    width: 100%;
    *:width: auto;      /*低版本的IE*/
    *:max-width: 100%;
    height: auto;
}
.mk-chat-box .content a{  /*消息内容区域超链接*/
    color: #0072C1;
    margin: 0 5px;
    cursor: hand;
}
.mk-chat-box .right .content{
    margin: 0 48px 0 0;
    border: 1px solid #78cdf8;
    background: #78cdf8;
}
.mk-chat-box .left .content{
    margin: 0 0 0 48px;
    border: 1px solid #CDD7E2;
    background: #CDD7E2;
}

.mk-chat-box .content:after{   /*消息尖角*/
    content: "";
    position: absolute;
    border-bottom: 8px solid rgba(255, 255, 255, 0);
}
.mk-chat-box .right .content:after{
    right: -12px;
    top: 8px;
    border-left: 12px solid #78cdf8;
}
.mk-chat-box .left .content:after{
    left: -12px;
    top: 8px;
    border-right: 12px solid #cdd7e2;
}
.mk-chat-box .tips{ /*系统提示条*/
    margin: 12px;
    text-align: center;
    font-size: 12px;
}
.mk-chat-box .tips span{
    display: inline-block;
    padding: 4px;
    background-color: #cccccc;
    color: #ffffff;
    -moz-border-radius: 6px; /* Firefox */
    -webkit-border-radius: 6px; /* Safari 和 Chrome */
    border-radius: 6px;
}
.mk-chat-box .tips .tips-primary{
    background-color: #428bca;
}
.mk-chat-box .tips .tips-success{
    background-color: #5cb85c;
}
.mk-chat-box .tips .tips-info{
    background-color: #5bc0de;
}
.mk-chat-box .tips .tips-warning{
    background-color: #f0ad4e;
}
.mk-chat-box .tips .tips-danger{
    background-color: #d9534f;
}

/*滚动条美化*/
.mk-chat-box::-webkit-scrollbar{width:8px;height:8px}
.mk-chat-box::-webkit-scrollbar-button:vertical{display:none}
.mk-chat-box::-webkit-scrollbar-track:vertical{background-color:transparent;}
.mk-chat-box::-webkit-scrollbar-track-piece{background-color:transparent;}
.mk-chat-box::-webkit-scrollbar-thumb:vertical{background-color:rgba(204,204,204,.3);border-radius:8px}
.mk-chat-box::-webkit-scrollbar-thumb:vertical:hover,
.mk-chat-box::-webkit-scrollbar-thumb:vertical:active {background-color: #8C8C8C}
